Graphics cards

Practically no one GPU mines Bitcoin anymore as the hashrate of any GPU is so low compared to the network today that the amount of Bitcoin earned is uselessly small and the power consumed is greater than the worth of the coins. This information is preserved for historical interest but does not include most GPUs released after the time mining ASICs started shipping in volume.

AMD (ATI)

Stream SDK 2.5 seems to have resolved many of the problems with earlier versions. Everyone's setups will be unique so this should only be a guide or starting point, not an absolute.

Sapphire fab. No flags options helped. Close all browsers and do full restart of GUIMiner and then Bitcoin via GUIMiner server starter or the browsers GPU accl. will limit to 56~ ish Mhash/s - I can now start browser without slowdowns

This is achieved by running RPC 4 way miner in VMware Fusion 4 (running win 7 in the VM) while in Mac OSX / Mac OS X 10.6.8

Model: MacBookPro6,2 RAM: 8GB.The CPU appears to turbo boost to 3.33GHz in this way from 2.67GHz when running it in this way.The MBP gets very hot and uses a lot of energy though so watch those temps.It'll throttle after a while unless you keep the air vents clear underneath (ie don't put int in your lap,etc).